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Development Tools Products Documentation

Microcontrollers With On-Chip Touch

Easy-to-Use Touch Library Solutions for Buttons, Sliders, Wheels and Proximity

Creating a high-performance capacitive touch interface for your product doesn’t have to be difficult, time consuming or expensive. Our industry-leading selection of touch-enabled microcontrollers (MCUs), paired with our easy-to-use development tools, makes adding capacitive touch almost effortless for most applications.

Exceptional Flexibility: Multiple MCU Architectures with Self and Mutual Capacitance

We offer a wide variety of touch-enabled PIC^®, AVR^® and SAM MCUs that make it easy to enable high-performance and reliable touch sensing in your design. PIC, AVR and SAM MCUs feature one or more of these dedicated, hardware-based Core Independent Peripherals (CIPs) to offload the touch functionality from the MCU’s core:

Hardware Capacitive Voltage Divider (HCVD)
Analog-to-Digital Converter with Computation (ADCC)
Analog-to-Digital Converter with Computation and Context Saving (ADCCC)
Peripheral Touch Controller (PTC)

The on-chip touch modules support self- and mutual-capacitance measurements to provide exceptional design flexibility.

Autonomous and Robust

Core Independent Peripherals enable autonomous touch operation that frees up CPU resources and reduces power consumption, even in designs that have a very high button count. With their built-in automatic tuning and calibration, they also enable the highest sensitivity, superior noise immunity and water tolerance for even demanding touch applications that are exposed to and need to function in harsh environments.

Short Time to Market

We support your MCU-based touch configuration right from the start with an extensive array of easy-to-use software and hardware development tools. You are never alone when you choose our touch solutions. Our global technical support team is available to provide expert answers to all your design questions.

Find everything you need to create your MCU-enabled capacitive touch interface here:

Explore MCUs for Touch

Find Touch Development Tools

Go to Touch Tutorials

Get Expert Technical Support

Additional Benefits of Our Touch-Enabled MCUs

Our portfolio of touch-enabled 8-, 16- and 32-bit MCUs comes with a variety of options to meet your specific design requirements:

Small package sizes, including WLCSP, for space-constrained applications
SOIC/SSOP packages for cost-optimized production
Devices that range from 6 to 144 pins and come with up to 1 MB Flash memory
On-chip integration options that include USB, CAN/CAN FD, LIN, IrDA®, wireless protocol stack, segmented LCD and graphics
Automotive-certified devices
Easy-to-use, comprehensive development ecosystem simplifies your prototyping and speeds up your time to market
Dual-core architecture that enables isolation of safety-critical and real-time touch operation from the rest of the application
Support for functional safety (ISO 26262, IEC 61508 and IEC 60730) with dedicated hardware safety features to achieve safety compliance and faster boot time
Immutable secure boot and secure firmware update for applications requiring security

Is a Turnkey Capacitive Touch Controller a Better Option for Your Design?

We also offer plug-and-play turnkey touch controllers if you want a simple and fast option for replacing mechanical buttons without making any additional changes to your product.

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Development Tools

Featured Hardware Development Tools

Here are several featured touch development boards that will make it easy to create your capacitive touch sensing application:

QT7 XPlained Pro Extension Kit

ATQT7-XPRO

The QT7-XPRO is optimized for capacitive self-sensing providing two buttons and a slider. It supports water tolerant and noise robust touch.

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T10 XPlained Pro Extension Kit

AC47H23A

The T10-XPRO is optimized for capacitive mutual-sensing providing four buttons and a slider. It supports water tolerant and noise robust touch as well as Boost Mode. Boost Mode is a only at Microchip technology to scan multiple touch nodes at once – saving time, power and/or increasing SNR in the process.

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Curiosity Nano Touch Adapter

AC80T88A

The Curiosity Nano Touch Adapter connects the Curiosity Nano MCU exploration boards to the XPlained pro touch extension boards.

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ATtiny817 Water Tolerance Demonstration Kit

ATTINY817-QTMOISTD

This kit enables out of the box validation of:

Water tolerant touch utilizing Microchips Driven Shield+ technology
Passing with full functionality IEC 61000-4-6 level 3 (10Vrms) Conducted Immunity

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Water-Tolerant 2D Touch Surface Development Kit - PIC® MCU Edition

DM164149

This kit offers a complete out of the box experience for Microchip 2D Touch Library:

Water tolerant touchpad
On chip gesture recognition (taps, swipes, pinch/zoom)
Reference FW to pass IEC 61000-4-6 level 3 8!Vrms) CI

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BIST XPlained Pro

AC11C60A

The BIST-XPRO is a inter-connector board for the XPRO and Curiosity nano ecosystem. It adds to ability to introduce pin failures in early stage of development.

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T9 XPlained Pro

AC89D55A

Microchip T9 Xplained Pro kit is an extension board that enables easy evaluation of Metal over Cap (MoC) - Microchips patented solution for waterproof touch on metal. The kit demonstrates water proof touch, speed and noise immunity for touch buttons on metal surfaces.

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PIC32CM LE00 Ultra-low Power Water-Tolerant Touch Reference Design

EV55S83A

This reference design is driven by a 32-bit PIC32CM LE00 MCU with integrated enhanced Peripheral Touch Controller (PTC). It enables out-of-the-box validation of water-tolerant touch utilizing our Driven Shield+ technology. It supports taps, swipes, pinch/zoom and single-finger tracking and features ultra-low power with wake-up-on-touch support. It passes IEC/EN 61000 4-6, level 3 (10V rms) certification with conducted immunity.

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dsPIC33CK Curiosity Nano Board for Touch Designs

Part Number: EV88G73A

This simple board can help you quickly prototype your touch application with the Curiosity Nano Touch Adapter and touch extension boards.

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See More Touch Development Tools

Software Development Tools

The MPLAB^® development environment is a single tool chain supporting all PIC^®, AVR^® and SAM microcontrollers and can be used to simplify touch configuration in your design. It includes these tools:

MPLAB® X Integrated Development Environment (IDE)

MPLAB X IDE is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for most of Microchip’s microcontrollers and digital signal controllers. It offers a host of features to help you quickly debug your projects and minimize your development time.

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MPLAB Xpress Cloud-Based IDE

MPLAB Xpress Cloud-Based IDE is an online development environment that contains the most popular features of MPLAB X IDE. It is a perfect starting point for new users of PIC^® and AVR^® microcontrollers (MCUs) and requires no downloads, no machine configuration and no waiting to get started on your system development.

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MPLAB Code Configurator

MPLAB Code Configurator (MCC) is a free, graphical programming environment that generates seamless, easy-to-understand C code to be inserted into your project. Using an intuitive interface, it enables and configures a rich set of peripherals and functions specific to your application.

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MPLAB Harmony v3

MPLAB Harmony v3 is a fully integrated embedded software development framework for 32-bit PIC and SAM MCUs that provides flexible and interoperable software modules to simplify the development of value-added features and reduce your product’s time to market.

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MPLAB Data Visualizer

Troubleshooting your code's run-time behavior has never been easier. MPLAB® Data Visualizer is a free debugging tool that graphically displays run-time variables in an embedded application. Available as a plug-in for MPLAB X Integrated Development Environment (IDE) or a stand-alone debugging tool.

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